Magnetic field in the center of the toroid

AI Thread Summary
The discussion centers on calculating the magnetic field at the center of a toroid using the formula B = mu*N*I/2*pi*r. However, the book states this approach is invalid due to the lack of a constant field path through the center. Participants suggest using the Biot-Savart Law as an alternative method for this calculation. Guidance is requested on how to effectively apply the Biot-Savart Law in this context. The conversation emphasizes the complexities of magnetic field calculations in toroidal structures.
JasonBourneV
Messages
12
Reaction score
0
Can't this be calculated from B = mu*N*I/2*pi*r? Book explanation says that this can't be done because there is "no path through the center along which the field is constant" So I guess I must use the Biot-Savart Law. How should I go about doing that?
 
Physics news on Phys.org
Thanks a lot, Doc Al, for the link!
 
I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
Thread 'A cylinder connected to a hanging mass'
Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
Back
Top